/* ==========================================
   Variables y Reset
   ========================================== */
:root {
    /* Paleta de colores profesional - azul marino profundo, gris oscuro y blanco */
    --primary-dark: #0a1628;
    --primary-blue: #1e3a5f;
    --accent-blue: #2c5f8d;
    --light-blue: #4a8aba;
    --gray-dark: #2d3748;
    --gray-medium: #4a5568;
    --gray-light: #e2e8f0;
    --white: #ffffff;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;

    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* Tipografía */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3rem;

    /* Sombras */
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transiciones */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    min-height: 100vh;
}

/* ==========================================
   Utilidades
   ========================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ==========================================
   Header
   ========================================== */
.header {
    padding: var(--spacing-md) 0;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo {
    max-height: 60px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    transition: transform var(--transition-base);
}

.logo:hover {
    transform: scale(1.05);
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    padding: var(--spacing-xl) 0;
    text-align: center;
    background: url('assets/code.jpg') center/cover no-repeat;
    position: relative;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(10, 22, 40, 0.9) 0%, rgba(30, 58, 95, 0.85) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--gray-light);
    margin-bottom: var(--spacing-md);
    font-weight: 300;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #48bb78;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* ==========================================
   Services Section
   ========================================== */
.services {
    padding: var(--spacing-xl) 0;
    background: var(--white);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-dark);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.service-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    border: 1px solid var(--gray-light);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-blue);
}

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--accent-blue), var(--light-blue));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: var(--white);
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: var(--spacing-sm);
}

.service-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ==========================================
   Contact Section
   ========================================== */
.contact {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-blue) 100%);
    color: var(--white);
    text-align: center;
}

.contact .section-title {
    color: var(--white);
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-text {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--gray-light);
}

.contact-email {
    display: inline-block;
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--white);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 8px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-base);
}

.contact-email:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
    border-color: rgba(255, 255, 255, 0.4);
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    padding: var(--spacing-lg) 0;
    background: var(--primary-dark);
    color: var(--white);
}

.footer-content {
    text-align: center;
}

.footer-text {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.privacy-button {
    background: transparent;
    color: var(--light-blue);
    border: 2px solid var(--light-blue);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 6px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    margin-bottom: var(--spacing-md);
}

.privacy-button:hover {
    background: var(--light-blue);
    color: var(--white);
    transform: scale(1.05);
}

.footer-copyright {
    font-size: var(--font-size-sm);
    color: var(--gray-light);
    margin-top: var(--spacing-md);
}

/* ==========================================
   Modal
   ========================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-md);
    overflow-y: auto;
}

.modal-content {
    background: var(--white);
    border-radius: 16px;
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--gray-light);
}

.modal-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-dark);
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--gray-medium);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--gray-light);
    color: var(--primary-dark);
}

.modal-body {
    padding: var(--spacing-lg);
    color: var(--text-primary);
}

.modal-body h3 {
    font-size: var(--font-size-xl);
    color: var(--primary-dark);
    margin-bottom: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.modal-body h3:first-child {
    margin-top: 0;
}

.modal-body h4 {
    font-size: var(--font-size-lg);
    color: var(--accent-blue);
    margin-bottom: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.modal-body p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.privacy-highlight {
    background: linear-gradient(135deg, rgba(44, 95, 141, 0.1), rgba(74, 138, 186, 0.1));
    padding: var(--spacing-md);
    border-left: 4px solid var(--accent-blue);
    border-radius: 4px;
    margin: var(--spacing-md) 0;
}

.modal-body ul {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-md);
}

.modal-body li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

.modal-body a {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.modal-body a:hover {
    color: var(--light-blue);
    text-decoration: underline;
}

.privacy-date {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-light);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.modal-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--gray-light);
    display: flex;
    justify-content: flex-end;
}

.btn-close {
    background: var(--accent-blue);
    color: var(--white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 6px;
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-close:hover {
    background: var(--light-blue);
    transform: scale(1.05);
}

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 768px) {
    :root {
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.5rem;
        --font-size-xl: 1.25rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .header {
        padding: var(--spacing-sm) 0;
    }

    .logo {
        max-height: 50px;
    }

    .hero {
        padding: var(--spacing-lg) 0;
        min-height: 400px;
    }

    .services {
        padding: var(--spacing-lg) 0;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .service-card {
        padding: var(--spacing-md);
    }

    .contact {
        padding: var(--spacing-lg) 0;
    }

    .contact-email {
        font-size: var(--font-size-xl);
        padding: var(--spacing-sm);
    }

    .footer {
        padding: var(--spacing-md) 0;
    }

    .modal-content {
        margin: var(--spacing-sm);
    }

    .modal-header,
    .modal-body,
    .modal-footer {
        padding: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .service-icon {
        width: 56px;
        height: 56px;
    }

    .service-icon svg {
        width: 32px;
        height: 32px;
    }
}

/* ==========================================
   Accesibilidad
   ========================================== */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible para accesibilidad con teclado */
:focus-visible {
    outline: 2px solid var(--light-blue);
    outline-offset: 2px;
}